Modified press screw -nut assembly structure

The utility model relates to a modified press screw -nut assembly structure, including the lead screw urceolus, screw -nut, the adjustment lead screw, the lead screw urceolus is one -way open -ended tubular structure, outside -in is equipped with first -order column section of thick bamboo chamber in proper order in the one -way open -ended tubular structure, second order column section of thick bamboo chamber, the latus rectum in first -order column section of thick bamboo chamber is greater than the latus rectum in second order column section of thick bamboo chamber, screw -nut's one end is inserted and is established at first -order column section of thick bamboo intracavity, screw -nut's the other end is equipped with connects outer eaves ring, it is equipped with connect the via hole to connect outer eaves intra -annular, bolt in the connect the via hole is connected with the open end of one -way opened cylinder column structure, screw -nut one end compresses tightly through the pressure release packing